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Microsoft Security Response CenterCVE-2026-108469

Microsoft Authentication Library for JavaScript Spoofing Vulnerability

HighVendor CVSS 6.8 / 10 1 CVE Published Nov 10, 2026 at 8:00 AM UTC

Summary

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Authentication Library for JavaScript allows an unauthorized attacker to perform spoofing over a network.

Products covered

  • Microsoft Authentication Library for JavaScript

Remediation

Release Notes

Vendor-listed fixes

  • 5.21.0

CVEs in this advisory 1

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.